Research on the mechanical properties and microscopic characteristics of multi-source solid waste based soft soil solidification materials
CHEN Yan
ZHANG Kehan
WU Dongwei
ZHANG Yulu
ZHANG Shaomin
GONG Hui
Abstract：Soft soil stabilizers often encounter problems such as poor reinforcement effect,long construction period,and difficul-ty in forming piles.This paper proposes a new type of reinforcement material(DSFA)based on industrial solid waste as the main component.The strength variation of stabilized soil under different material dosages was compared.The mechanism of the new soft soil stabilizer was also studied through SEM,XRD,and TG.The results show that when the content of desulfurized gypsum is 15％,the content of mineral powder is 20％,the content of alkali activator is 4％,and the content of fly ash is 14％,the stabilizer exhibits the best compressive strength,with a 7-day compressive strength of 17.1 MPa and a 28-day compressive strength of 43.2 MPa.As the dosage of DSFA increases,the compressive strength shows a significant upward trend overall.The early strength of DSFA consolidated soil is relatively low,and as the curing age increases,the consolidated soil gradually changes from plastic failure to brittle failure.The core samples of the new soft soil stabilizer are complete and meet the relevant design standard JGJ 79-2012"Technical code for ground treatment of buildings".
Keywords：industrial solid wastesilty soft soilcuring agentcuring mechanismunconfined compressive strength
Publication Date：2025-10-25
Online Publishing Date：2025-11-28(First online date of this platform, not the publication date of the document)
Pages：7( 37-42,48 )